package com.example.demo.service;

import com.example.demo.entity.User;
import org.springframework.web.multipart.MultipartFile;
import java.util.List;

public interface UserService {
    List<User> getAllUsers();
    User addUser(User user);
    void deleteUser(Long id);
    void importUsersFromExcel(MultipartFile file);
    User updateUser(Long id, User user);
} 